Trailer



C. H. LAND, JR.

TRAILER.

APPLICATION FILED JUNE I4. I920.

Patented Dec. 20, 1921.

3 SHEETS-SHEET I.

1A00fi52 ILIH C. H. LAND, JR.

7 TRAILER.

APPLICATION FILED JUNE 14, 1920.

Lwfifimfi Patented mm, 1921.

3 SHEETS-SHEET 2.

C. H. LAND,.JR. TRAILER.

APPLICATION FILED JUNE 14. 1920.

LQUUQYSQB Patented Dec. 20, 192i.

3 SHEETS-SHEET 3.

earner entice,

CHARLES H. LAND, JR, 0% DETROIT, Z'EIGI-IIGAN, AS$IG$TOR OF ONE-HALF T0 WILLIAM HZ 'WILSQN, 82 DETROIT, MICHIGAN.

ERAILEE.

il,fd,*?52.

Application filed June M,

- gan, have invented. a" certain new and useful Im rovement 1n Trailers; and declare the I fol owing to be a full, clear, and exact descriptiOn of the same, such as will enable others skilled in the art 'to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of thls spe c1fication.

This invention relates to a trailer shown in the accompanying drawings and more particularly described in the following specification and claims.

Among other objects of the present invention, is the construction of a trailer with a longitudinally movable ,member or reach adapted to be detachably connected with a tractor, that it may transmit the power of the latter to operate a pluralit of mechanisms carried by the trailer, as for exam le;

-a swinging supporting leg for the trader, 'wh-ich may be either automatically, or manually raised and lowered ;-a power shaft mechanism for unloading the trailer and aibrake mechanism for the wheels of the latter, whereby suflicient resistance to a forward and backward movement of the trailer may be afforded so that the reach may be operated to lower or raise the supporting leg ;-to rotate the power shaft for dischar ing the contents of the trailer ;-or for other re uirements.

further object is to provide a spring supported pivoted draw-barmember for facility in coupling the trailer toa truck or tractor anda'lso to admit of the proper action of the longitudinally movable membera i A further object is to. provide for either the automatic-or manual raising and lower-' ing of the swinging supporting leg.

A still further object is to provide for either the automatic or manual application of the brake mechanism to the wheels of the trailer.

With the. foregoing and other objects in. view which will appear as the description proceeds, the invention further resides in the combination and arrangement of parts and in the details of construction hereinafter de- Specificaticn oflett'ers Patent. t t v 2a, 21,

3.930. Serial No. 338,813.

Without departing from the spirit of the same.

In the drawings accompanying this specification and forming part thereof r--- Figure 1 is a side elevation of a trailer embodying my invention, attached to the rear end of a tractor or truck, with the supporting leg raised, as when hauling.

Fig.2 is a plan view-of the trailer. I

Flg. 3 is a cross-sectional View taken on'or about line 3-3 of Fig. 2.

Fig. 4 is aside elevation of the trailer connected with a tractor with the brake set and the leg lowered to support the trailer,- as when operated by the slidable reach shifted through the action of the tractor also indicating in dotted-lines the body of the trailer tilted as when discharging its load through the operation of the unloading mechanism,-also actuated b the movement of the reac l Fig. 5 is a longitudinal section with parts broken away, and in elevation," taken on or about line'5--5 oi,Fig. 8.

Fig. 6 is a plan View" of a trailer fitted with rolls actuated by the slidable reach, adapted particularly for discharging lumber or the like.

Fig.7 is a perspective view of a fragmentary portion of the frame of the trailer, .with parts broken away and in section, show ing the slidable reach, the flexible draw-bar pivoted thereto andtherack bars carried by the reach for operating the unloadingmechanisms, swinging supporting leg and brake mechanism of the trailer.

Fig. '8 is a fragmentary. cross-sectional rangement of the brake operating mechanism when the same is in its locked position. Referring now tothe letters of reference placed upon the drawings A, denotes a trailer, embodying a suitable channel frame B B, forming the side sills of the vehicle, B", B, denotes a pair of I-- beams spaced apart and supported between the side sills by a plurality of transverse members B bolted to the sills and the L beams.

Cfidenotes a slidable reach located between the I-beams, consisting of apair of channel irons C, C, spaced apart and bolted to an upper andlower rack-bar D and D and thereby forming a single longitudinally SllClable unit. forward end of the reach extend laterally as indicated at LP, '0 intothe channel irons B, B, or side sills'of the trailer. Pivoted to the ends of the channel irons L) U, by bolts is a draw bar frame E, carrying the draw bar E',-the latter being yieldingly supported on a plane with the side sills by a spring 1. bolted to the end of the reach. j

G, denotes a suitable brake mechanism for the wheels of the trailer which may either set manually through the rotation of the shaft H by the crank H, or automatically, by the forward movement of the reach inion IPz-slidable laterally on the shaft 1, that the pinion may'be disconnectedfrom the teeth of the rack bar when the shaft is manually operated. The pinionH is secured to the shaft H, in either. its meshed or demeshed relation to the rack-bar, by a suitable set-screw. The front sectional portion of the mutilated-rack bar D operates the pinion H and the said meshing section or portion of the mutilated rack bar D is of sufiicient number of teeth to set the brake and carry the crankshaft H to a locking position,v after which the said front sections or portion disengages the pinion H and leaves the crank shaft in such set'and locked position during the continued forward movement of the reach.

- I indicates a swinging leg pivoted to a' transverse right. and left screw-threaded shaft J journaled in the side sills of the frame of the trailer. K is a pinion slidable on a central squared portion of the shaft,- and secured thereto by a set screw K that the she/ft may be rotated by the pinion through the movement of the rack-bar or manually by the crank arm J J indicates toggle arms pivoted to the two screw sleeves J mounted respectively on the right and left screw-threaded portions of the shaft. The opposite end of the toggle arms are pivoted to the sliding'member J 3 supported y the I-beams B3B, J 4 are links connected with the member J and with the swinging leg I,--the lower end of which is fitted with wheels I. L, denotes a transverse shaft fitted with a pinion L adapted to mesh with the upper rack bar .D, and with a gear U in mesh with a pinion L on the shaft of .the winding drum L. M. is a pulley mounted upon a standardM' secured to the The channel irons C C, at the and its mutilated rack-bar D engaging the trailer frame, and M is a hoisting cable connected with the dump body A, and to the winding drum L It will thus be clear that the reach with its lower mutilated rack bar; and-upper rack bar is adapted to apply and lock the brake in a set position and swing the pivoted supporting leg I into operative position and finally elevate .the body to a dumping position. w

P is a lock pin extending'through the side sills of the trailer frame and into the slid-- able reach to secure the latter in fixed relation to the trailer frame when desired.

Q. is a fifth wheel member carried by the tractor having a latch Q adapted to engage the draw-bar E.

It indicates the bed frame of alumber trailer fitted with rollers R, suitably journaled and provided with pinions R adapted to mesh with the rack bar D, whereby the 35' several rolls may be operated to assist in discharging the lumber piled thereon.

Having now indicated the several parts by reference letters the construction and operation of the device will be readily understood:-' i

The trailer having been coupled with the tractor, the locking pin P is removed that the reach may-be adapted to slide between the I-beams of the trailer. The tractor or truck is then driven ahead slowly drawing the reach C, out from between the I-beams causing the mutilated rack bar 'D to engage the pinion H rotating the. shaft H, and thereby setting the brake mechanism Gr. The trailer now offers a high resistance to any attempt to shift its position, and the reach may be readily drawn out by the tractor to the position shown in Fig. 4 which action causes the rack bar D to rotate the pinion K,-slidable laterally on the shaft J, that it may be .thrown out of gear with the rack bar when desired-the toggle mechansim J is thus operated by the screw sleeves on the right'and left screw shafts with which it is connected thereby causing the swinging leg I to move downwardly into a vertical position as shown in Fig. 4: to support the forward end of the trailer. By releasing the set screw K and pushing the gear K out of mesh with the rack bar D the supporting leg I may be manually raised and lowered through the operation of the crank arm J. In the forward position of the reach C, the draw-bar frame E,

pivoted thereto is freed from the channelmembers B, B,or side sills of the trailer this allows the trailer to drop upon its supporting leg, as shown in Fig. '4, thereby taking the strain off the slidable reach.

' A further forward movementof the tractor or truck will cause the rack bar D to actuate the gear L,-the shaft L, gears L and L and winding drum L. The hoisting cable is thus wound up ,causing the dump-body of the trailer to discharge its load. If desired other mechanisms may be operated in a similar manner.

As shown in Fig. '6, a removable frame may be placed in the bottom of the trailer fitted with a plurality of rollers'actuated by pinions in mesh with the rack bar, to

' facilitate the discharge of its load. It will be understoodthat the application of the brake is not essential to the actionof coupling or uncoupling the trailer and tractor the flexible draw-bar member requiring only the inertia of the trailer to cause the coupling bar to slide up the inclined way of the fifth Wheel into a locking position. It

I will also'be understood that the action of the swinging leg is not coincident with the setting of the brake but is entirely independent thereof. The gear for operating the swinging leg may be thrown out of meshed relation with the rack bar allowing the swinging leg to remain in a vertical position, the slidable reach will then set the brake automatically without acting upon the supporting leg. 1

Having thus described my invention,whatll claim is: I

1. In a traction machine, a tractor, a trailer,. a folding supporting leg for the trailer, a slidable member detachably connected with the tractor adapted to throw said supporting leg into or out of action.

2. "In a traction machine, a tractor, a trailer, means for braking the wheels of the trailer movable to and from a locked position,and a slidable member detachably connected with the tractor adapted to operate braking means through the movement of the tractor and leave the brake mechanism in a locked position.

3. In a traction machine, a tractor, a trailer detachably connected thereto, a plurality of operative mechanisms. carried by the trailer and including a brake movable to and from a locked position, means carried by the trailer detachably connected with the tractor adapted to admit of a limited independent movement of the tractor'with regard to the trailer and to transmit the motive power of the tractor to the several operative mechanisms of'the trailer including means for leaving the brake in a locked position. 1

4.111 a traction machlne, a tractor, a

, trailer detachablv' connected thereto, a pinrality of operative mechanisms earned by;

the trailer, a movable rea ch carried by the trailer detachably connected with the. tractor and at a plurality of points with the said mechanisms and adapted to operate one orv more of the several operative mechanisms of the trailer in successive order.

5. In a traction machine, a tractor, a trailer detachably connected thereto by va slidable member having rack-gear teeth, a

brake mechanism for the wheels of the trailer including a pinion adapted to be actuated .by the rack-gear teeth of said slidable member, a folding supporting leg for the trailer,means for raislngand lowering said leg including a ear also adapted to be actuated by the rack-teeth 'ofthe slidable member.

6. In a traction machine, a tractor, a

trailer, a slidable member supported in the.

frame of the trailer, a draw-bar pivoted to the slidable member adapted for detachable connection with the tractor, said draw-bar and slidable member having a limited movement independent of the trailer through the operation ofthe tractor, and a plurality of operative mechanisms carried by the trailer adapted to be'successively actuated through the movement of said slidable member and movable to a set position. v

7. In a traction machine, a tractor, a trailer, a slidable reach fitted with rack gear teeth, a spring supported draw-bar pivoted to theslidable, reach, means for detachably connecting said draw-bar with the tractor, a brake mechanism for the tractor wheels, means for actuating said. brake mechanism including a gear adapted to be actuated by the rack gear teeth of the slidable reach, a folding supporting leg for the trailer, and

means for actuating said leg including a L gear also actuated by the rack-gear teethof the slidable reach through the movement of the tractor.

8.1'11 a traction machinepa tractor, a trailer, a slidable reach carrying rack-gear teeth, a draw-bar supportedin a if-shaped frame guided by the side sills of the trailer and pivoted to the slidable reach, a spring for supporting the draw-bar, a folding supporting leg for the trailer and means for teeth of the reach through the independent movement of the tractor.

10. In a trailer, a plurality of operable mechanisms including a brake movable o and from a locked position, a movable reach adaptedrfor connection with a tractor, means actuated through said reach for operating said' mechanisms and for leaving the brake in a locked position, and means for locking 'said reach 1 against movement.

11. A traction trailer including a slidable reach, brake mechanism, a pivoted supporting leg, and means connected with the brake mechanism and with the pivoted leg and successively operated by the slidable reach for applying the brake and for carrying the leg to its supporting position.

12. A traction trailer including a slidable reach, brake mechanism, a pivoted supporting leg, and rack and pinion mechanism connected with the brake mechanism and with the said leg and arranged to successively apply the brake mechanism and carry the said leg to supporting position.

CHARLES H. LAND, JR.

13. 'A traction trailer including a slid? Witnesses:

able reach, brake mechanism, a pivoted supporting leg, means connected with the'brake S. E, THoMAs, I JoHN CoNsIoINE, Jr. 

